package util;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Random;

public class ImageCodeUtil {

	public String sRand;

	public ImageCodeUtil() {
		sRand = "";
	}

	public Color getRandColor(int fc, int bc) {
		Random random = new Random();
		if (fc > 255)
			fc = 255;
		if (bc > 255)
			bc = 255;
		int r = fc + random.nextInt(bc - fc);
		int g = fc + random.nextInt(bc - fc);
		int b = fc + random.nextInt(bc - fc);
		return new Color(r, g, b);
	}

	public BufferedImage creatImage() {
		int width = 60;
		int height = 20;
		BufferedImage image = new BufferedImage(width, height, 1);
		Graphics g = image.getGraphics();
		Random random = new Random();
		g.setColor(getRandColor(200, 250));
		g.fillRect(0, 0, width, height);
		//g.setFont(new Font("Times New Roman", 0, 18));
		g.setColor(getRandColor(160, 200));
		for (int i = 0; i < 155; i++) {
			int x = random.nextInt(width);
			int y = random.nextInt(height);
			int xl = random.nextInt(12);
			int yl = random.nextInt(12);
			g.drawLine(x, y, x + xl, y + yl);
		}

		for (int i = 0; i < 4; i++) {
			String rand = getRandomCode(random);
			sRand += rand;
			g.setColor(new Color(20 + random.nextInt(110), 20 + random
					.nextInt(110), 20 + random.nextInt(110)));
			g.drawString(rand, 13 * i + 6, 16);
		}

		g.dispose();
		return image;
	}
	
	private String getRandomCode(Random random){
		int num = random.nextInt(122);
		if(num>64){
			char c = (char)num;
			return String.valueOf(c);
		}else{
			num = random.nextInt(10);
			return String.valueOf(num);
		}
	}

	public String getSRand() {
		return sRand;
	}
	
	public String getRandomCode() {
		Random random = new Random();
		return String.valueOf(random.nextInt(9999));
	}
	
	public static void main(String[] args) {
		Random random = new Random();
		System.out.println(random.nextInt(9999));
	}
}
